General Electric suggests this circuit in a 1980s documentation. The operational of the time is FET-type input. Modern equivalents may be used.
June 2017 - The new EEH-ZK (Type V) hybrid conductive polymer capacitors from Panasonic with...
In this 2001 circuit we have the way to trigger an SCR with a phototransistor. The circuit appears...
This circuit, found in 1998 documentation, automatically activates solenoid valves in an...